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13419544869 = 321491060541
BaseRepresentation
bin11000111111101111…
…00000000100100101
31021122020020111211100
430133313200010211
5204440400413434
610055335230313
7653356151343
oct143767400445
937566214740
1013419544869
115766a8a755
122726218399
13135b2974c3
1491437a993
155381c6699
hex31fde0125

13419544869 has 6 divisors (see below), whose sum is σ = 19383787046. Its totient is φ = 8946363240.

The previous prime is 13419544861. The next prime is 13419544889. The reversal of 13419544869 is 96844591431.

13419544869 is a `hidden beast` number, since 1 + 3 + 4 + 19 + 544 + 86 + 9 = 666.

13419544869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8233384644 + 5186160225 = 90738^2 + 72015^2 .

It is not a de Polignac number, because 13419544869 - 23 = 13419544861 is a prime.

It is a super-2 number, since 2×134195448692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13419544861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 745530262 + ... + 745530279.

Almost surely, 213419544869 is an apocalyptic number.

It is an amenable number.

13419544869 is a deficient number, since it is larger than the sum of its proper divisors (5964242177).

13419544869 is a wasteful number, since it uses less digits than its factorization.

13419544869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491060547 (or 1491060544 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 13419544869 in words is "thirteen billion, four hundred nineteen million, five hundred forty-four thousand, eight hundred sixty-nine".

Divisors: 1 3 9 1491060541 4473181623 13419544869